720=8a+7b

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Solution for 720=8a+7b equation:


Simplifying
720 = 8a + 7b

Solving
720 = 8a + 7b

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-8a' to each side of the equation.
720 + -8a = 8a + -8a + 7b

Combine like terms: 8a + -8a = 0
720 + -8a = 0 + 7b
720 + -8a = 7b

Add '-720' to each side of the equation.
720 + -720 + -8a = -720 + 7b

Combine like terms: 720 + -720 = 0
0 + -8a = -720 + 7b
-8a = -720 + 7b

Divide each side by '-8'.
a = 90 + -0.875b

Simplifying
a = 90 + -0.875b

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